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SigmasTek  |  SKU: BW-3710

Alpha Technologies Tetrex 1500 High Performance UPS Replacement Battery Set

Sale price $33.31 USD Regular price $48.30
Shipping calculated at checkout.

➤ Includes 2 high-quality SigmasTek SP12-7.5HR batteries, 12V 7.5 AH

➤ Designed for quick power delivery in UPS and emergency applications

➤ Spill-proof valve regulated design prevents leaks and extends battery life

➤ Low self-discharge and vibration resistant for durability

➤ U.L. recognized, CE certified with a 1-year warranty for reliability


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ Quick Reminder

🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.

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Battery Care Guide

Battery Usage and Maintenance Guidelines 🔋

Please read the following instructions carefully before using your new battery. Proper adherence will help ensure optimal performance and extended service life.

1. Cordless Phones, PDAs, and Power Tools (NiMH, NiCd, Lithium-Ion) 📱

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Operate the device until the battery reaches approximately 20% capacity.
  • Avoid premature recharging.
  • Do not allow the battery to fully discharge during the initial cycles.

Post-Conditioning

  • Recharge the battery only when necessary.
  • These batteries are capable of approximately 500 charge cycles:
  • Once daily → ~500 days
    Twice daily → ~250 days
    Note: Even a partial recharge is considered a full cycle.

2. Sealed Lead Acid (SLA) Batteries 💡

  • No conditioning required.
  • Maintain the battery in a fully charged state; avoid complete discharge.
  • Capable of 300–400 charge cycles.
  • Expected service life: 2–3 years, depending on usage conditions.

3. Laptop Batteries (Lithium-Ion) 💻

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Charge fully, then discharge to approximately 20% capacity.
  • Avoid complete discharge, as some devices may not detect a fully drained battery.

Post-Conditioning

  • Minimize frequent plugging and unplugging.
  • Allow the battery to discharge moderately at least once per month to maintain optimal performance.
  • Occasional cycling is recommended to sustain battery health.

Professional Recommendation

Adhering to these guidelines will enhance battery longevity and ensure reliable performance.

For further assistance regarding your battery or order, our customer support team is available to provide guidance.

Delivery and Shipping

Everything You Need to Know About Shipping with BatteryWeb (USA)

We know reliable delivery matters when you need power fast. Here’s how BatteryWeb makes shipping easy across the USA:

🚚 Shipping & Delivery

Most orders ship next business day (some products like sealed lead acid may take a little longer).

Same-day shipping available if you order before 11:59 AM (delivery depends on the carrier).

We ship nationwide using FedEx, UPS, USPS, DHL, and regional ground carriers.

Shipping costs are calculated automatically at checkout based on weight, distance, and carrier.

Transit times shown are estimates only (business days, no weekends/holidays).

🌍 Shipping Restrictions

Lithium batteries cannot be shipped by USPS or air. They must go via FedEx Ground, UPS Ground, or DHL Ground.

PO Box deliveries are only available via USPS.

At this time, we do not ship lithium batteries to Puerto Rico. NiMH, NiCd, and Alkaline can be shipped.

📦 Important Notes

Double-check your shipping address! If an incorrect address is used and the order is returned, re-shipping costs are the buyer’s responsibility.

If a product is temporarily out of stock, we’ll notify you right away with the expected restock date—or issue a refund if you prefer.

💲 Currency & Pricing

All prices are shown in USD.

Orders shipped outside the USA may be subject to local taxes, customs fees, or import duties. These are the buyer’s responsibility.

⚡ At BatteryWeb, we’re committed to getting your batteries delivered quickly, safely, and affordably—so you’ll always have the power you need, when you need it.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

🔹 Our products are generic replacement parts and are not affiliated with, endorsed by, or manufactured by the original equipment manufacturers (OEMs).


Volts & Amps

12 Volts | 7.5 Ah

Terminal Type

F2

Replacement SigmasTek SP12-7.5HR for Alpha Technologies Tetrex 1500 UPS

Keep your Alpha Technologies Tetrex 1500 UPS operating reliably with this compatible replacement UPS battery set. The SigmasTek SP12-7.5HR batteries are engineered for high-rate discharge performance and are factory-fresh and fully tested to deliver the dependable power you need. This high-performance UPS battery set is an ideal, long-lasting battery solution for maintaining runtime on your UPS, supporting emergency systems, and powering battery-driven tools when short bursts of energy are required.

Key Specifications

  • Compatible UPS Model: Alpha Technologies Tetrex 1500
  • Replacement Battery Model: SigmasTek SP12-7.5HR
  • Quantity: 2 batteries per set
  • Voltage: 12 Volts
  • Capacity: 7.5 AH (Ampere-hours)
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Self-discharge: Low Self-discharge
  • Durability: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Installation Note: Use all existing cables and hardware from original configuration to connect new UPS batteries

Benefits

These replacement batteries deliver a balance of safety, performance, and longevity. The high rate discharge capability equips the Tetrex 1500 to meet peak demands over short periods, ensuring critical equipment remains powered during disturbances. Valve regulated, spill-proof construction minimizes maintenance and the potential for leaks, while low self-discharge helps maintain readiness for extended storage intervals. Together, these features create a long-lasting battery solution that reduces downtime and maintenance interventions.

Tested by knowledgeable technicians, each battery provides reliable performance and high vibration resistance for added durability in demanding settings. U.L. recognition and CE certification underscore the safety and performance standards these batteries meet. As a high-performance UPS battery choice, this set is suitable for uninterruptible power supply units, emergency backup applications, and battery-powered tools that require dependable short-term energy. Whether you’re performing scheduled replacements or stocking spares for emergency readiness, these SigmasTek batteries are a trusted long-lasting battery option.

Ready to upgrade your Tetrex 1500 backup power? Purchase this replacement UPS battery set now and benefit from fast shipping and a 1 year warranty. Order today to ensure reliable power when it matters most.


Payment & Security

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